See link
https://www.gov.uk/government/publi...o-2015-government-policy-accessible-transport note below from said link:
The government is committed to providing an accessible rail system which offers disabled people the same opportunities to travel as other people. The Railways for all strategy explains what Britains railway industry is doing to improve access for disabled people.
The Equality Act 2010 requires all station operators to take reasonable steps to ensure that they do not discriminate against disabled people. This document provides guidance to all station operators so that they continue to improve access to their services.
Accessible train station design for disabled people: a code of practice, November 2011
http://webarchive.nationalarchives....or-all-strategy/railways-for-all-strategy.pdf
Within the above document is the comment as follows:
The rail industry is committed to providing a comparable level of
service to disabled people and non-disabled people wherever
possible. Provision of accurate information combined with flexible
and accessible means of purchasing tickets, making reservations
and finding station information, improves the confidence of disabled
people to make journeys by rail.
Within the timeframe of this Strategy, improvements will continue
to be made by ATOC in the provision of information on NRES,
nationalrail.co.uk and in the APRS system.
The above to states that all doors and toilets on trains should be able to be accessed by the disabled and that they should not have to be pigeon holed into one area of a train.